ASTROSAT CZTI

Data Quality Report

Orbit 09423

Creation date: 2024-06-27T15:45:45.841993
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_178T01_9000001340_09423cztM0_level2.evt modeM0/AS1A02_178T01_9000001340_09423cztM0_level2_quad_clean.evt
Size (bytes)236,545,92034,911,360
Size225.6 MB 33.3 MB
Events in quadrant A1,821,853214,864
Events in quadrant B1,605,834216,796
Events in quadrant C1,747,520209,537
Events in quadrant D1,786,438205,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073282
B066261
C070111
D072451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2948752.544098%
B2948662.238806%
C2948662.238806%
D2948732.476255%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 4233 2949 4 4 0.09% 0.14%
B 4233 2949 0 0 0.00% 0.00%
C 4233 2949 32 32 0.76% 1.09%
D 4233 2949 17 17 0.40% 0.58%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 5 303935 3747.89 390 382 81.0
A 1 162 6215 72.02 390 382 81.0
A 13 251 5165 59.05 390 382 81.0
B 0 230 39263 510.75 391 381 76.1
B 0 214 15631 200.32 391 381 76.1
B 0 189 8376 105.02 391 381 76.1
C 4 254 209705 2366.09 377 378 88.5
C 9 68 61040 685.68 377 378 88.5
C 14 234 4610 47.84 377 378 88.5
D 8 195 129519 1415.07 374 366 91.3
D 1 52 121184 1323.75 374 366 91.3
D 12 227 32900 356.46 374 366 91.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter